1 files changed, 827 insertions, 827 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Composite.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Composite.java
index 96548af04a..770516cbd0 100755
--- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Composite.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Composite.java
@@ -1,830 +1,830 @@
-package org.eclipse.swt.widgets;
-
-/*
+package org.eclipse.swt.widgets;
+
+/*
  * Copyright (c) 2000, 2002 IBM Corp.  All rights reserved.
  * This file is made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- */
-
-import org.eclipse.swt.internal.win32.*;
-import org.eclipse.swt.*;
-import org.eclipse.swt.graphics.*;
-
-/**
- * Instances of this class are controls which are capable
- * of containing other controls.
- * <dl>
- * <dt><b>Styles:</b></dt>
- * <dd>NO_BACKGROUND, NO_FOCUS, NO_MERGE_PAINTS, NO_REDRAW_RESIZE, NO_RADIO_GROUP</dd>
- * <dt><b>Events:</b></dt>
- * <dd>(none)</dd>
- * </dl>
- * <p>
- * Note: The <code>NO_BACKGROUND</code>, <code>NO_FOCUS</code>, <code>NO_MERGE_PAINTS</code>,
- * and <code>NO_REDRAW_RESIZE</code> styles are intended for use with <code>Canvas</code>.
- * They can be used with <code>Composite</code> if you are drawing your own, but their
- * behavior is undefined if they are used with subclasses of <code>Composite</code> other
- * than <code>Canvas</code>.
- * </p><p>
- * This class may be subclassed by custom control implementors
- * who are building controls that are constructed from aggregates
- * of other controls.
- * </p>
- *
- * @see Canvas
- */
-
-public class Composite extends Scrollable {
-	Layout layout;
-	int font;
-	WINDOWPOS [] lpwp;
-	Control [] tabList;
-	
-/**
- * Prevents uninitialized instances from being created outside the package.
- */
-Composite () {
-}
-
-/**
- * Constructs a new instance of this class given its parent
- * and a style value describing its behavior and appearance.
- * <p>
- * The style value is either one of the style constants defined in
- * class <code>SWT</code> which is applicable to instances of this
- * class, or must be built by <em>bitwise OR</em>'ing together 
- * (that is, using the <code>int</code> "|" operator) two or more
- * of those <code>SWT</code> style constants. The class description
- * lists the style constants that are applicable to the class.
- * Style bits are also inherited from superclasses.
- * </p>
- *
- * @param parent a widget which will be the parent of the new instance (cannot be null)
- * @param style the style of widget to construct
- *
- * @exception IllegalArgumentException <ul>
- *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
- * </ul>
- * @exception SWTException <ul>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
- * </ul>
- *
- * @see SWT#NO_BACKGROUND
- * @see SWT#NO_FOCUS
- * @see SWT#NO_MERGE_PAINTS
- * @see SWT#NO_REDRAW_RESIZE
- * @see SWT#NO_RADIO_GROUP
- * @see Widget#getStyle
- */
-public Composite (Composite parent, int style) {
-	super (parent, style);
-}
-Control [] _getChildren () {
-	int count = 0;
-	int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
-	if (hwndChild == 0) return new Control [0];
-	while (hwndChild != 0) {
-		count++;
-		hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
-	}
-	Control [] children = new Control [count];
-	int index = 0;
-	hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
-	while (hwndChild != 0) {
-		Control control = WidgetTable.get (hwndChild);
-		if (control != null && control != this) {
-			children [index++] = control;
-		}
-		hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
-	}
-	if (count == index) return children;
-	Control [] newChildren = new Control [index];
-	System.arraycopy (children, 0, newChildren, 0, index);
-	return newChildren;
-}
-
-Control [] _getTabList () {
-	if (tabList == null) return tabList;
-	int count = 0;
-	for (int i=0; i<tabList.length; i++) {
-		if (!tabList [i].isDisposed ()) count++;
-	}
-	if (count == tabList.length) return tabList;
-	Control [] newList = new Control [count];
-	int index = 0;
-	for (int i=0; i<tabList.length; i++) {
-		if (!tabList [i].isDisposed ()) {
-			newList [index++] = tabList [i];
-		}
-	}
-	tabList = newList;
-	return tabList;
-}
-
-protected void checkSubclass () {
-	/* Do nothing - Subclassing is allowed */
-}
-
-Control [] computeTabList () {
-	Control result [] = super.computeTabList ();
-	if (result.length == 0) return result;
-	Control [] list = tabList != null ? _getTabList () : _getChildren ();
-	for (int i=0; i<list.length; i++) {
-		Control child = list [i];
-		Control [] childList = child.computeTabList ();
-		if (childList.length != 0) {
-			Control [] newResult = new Control [result.length + childList.length];
-			System.arraycopy (result, 0, newResult, 0, result.length);
-			System.arraycopy (childList, 0, newResult, result.length, childList.length);
-			result = newResult;
-		}
-	}
-	return result;
-}
-
-public Point computeSize (int wHint, int hHint, boolean changed) {
-	checkWidget ();
-	Point size;
-	if (layout != null) {
-		if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) {
-			size = layout.computeSize (this, wHint, hHint, changed);
-		} else {
-			size = new Point (wHint, hHint);
-		}
-	} else {
-		size = minimumSize ();
-	}
-	if (size.x == 0) size.x = DEFAULT_WIDTH;
-	if (size.y == 0) size.y = DEFAULT_HEIGHT;
-	if (wHint != SWT.DEFAULT) size.x = wHint;
-	if (hHint != SWT.DEFAULT) size.y = hHint;
-	Rectangle trim = computeTrim (0, 0, size.x, size.y);
-	return new Point (trim.width, trim.height);
-}
-
-void createHandle () {
-	super.createHandle ();
-	state |= CANVAS;
-}
-
-/**
- * Returns an array containing the receiver's children.
- * <p>
- * Note: This is not the actual structure used by the receiver
- * to maintain its list of children, so modifying the array will
- * not affect the receiver. 
- * </p>
- *
- * @return an array of children
- *
- * @exception SWTException <ul>
- *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Control [] getChildren () {
-	checkWidget ();
-	return _getChildren ();
-}
-
-int getChildrenCount () {
-	/*
-	* NOTE: The current implementation will count
-	* non-registered children.
-	*/
-	int count = 0;
-	int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
-	while (hwndChild != 0) {
-		count++;
-		hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
-	}
-	return count;
-}
-
-/**
- * Returns layout which is associated with the receiver, or
- * null if one has not been set.
- *
- * @return the receiver's layout or null
- *
- * @exception SWTException <ul>
- *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Layout getLayout () {
-	checkWidget ();
-	return layout;
-}
-
-/**
- * Gets the last specified tabbing order for the control.
- *
- * @return tabList the ordered list of controls representing the tab order
- *
- * @exception SWTException <ul>
- *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- * 
- * @see #setTabList
- */
-public Control [] getTabList () {
-	checkWidget ();
-	Control [] tabList = _getTabList ();
-	if (tabList == null) {
-		int count = 0;
-		Control [] list =_getChildren ();
-		for (int i=0; i<list.length; i++) {
-			if (list [i].isTabGroup ()) count++;
-		}
-		tabList = new Control [count];
-		int index = 0;
-		for (int i=0; i<list.length; i++) {
-			if (list [i].isTabGroup ()) {
-				tabList [index++] = list [i];
-			}
-		}
-	}
-	return tabList;
-}
-
-boolean hooksKeys () {
-	return hooks (SWT.KeyDown) || hooks (SWT.KeyUp);
-}
-
-/**
- * If the receiver has a layout, asks the layout to <em>lay out</em>
- * (that is, set the size and location of) the receiver's children. 
- * If the receiver does not have a layout, do nothing.
- * <p>
- * This is equivalent to calling <code>layout(true)</code>.
- * </p>
- *
- * @exception SWTException <ul>
- *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void layout () {
-	checkWidget ();
-	layout (true);
-}
-
-/**
- * If the receiver has a layout, asks the layout to <em>lay out</em>
- * (that is, set the size and location of) the receiver's children. 
- * If the the argument is <code>true</code> the layout must not rely
- * on any cached information it is keeping about the children. If it
- * is <code>false</code> the layout may (potentially) simplify the
- * work it is doing by assuming that the state of the none of the
- * receiver's children has changed since the last layout.
- * If the receiver does not have a layout, do nothing.
- *
- * @param changed <code>true</code> if the layout must flush its caches, and <code>false</code> otherwise
- *
- * @exception SWTException <ul>
- *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void layout (boolean changed) {
-	checkWidget ();
-	if (layout == null) return;
-	setResizeChildren (false);
-	layout.layout (this, changed);
-	setResizeChildren (true);
-}
-
-Point minimumSize () {
-	Control [] children = _getChildren ();
-	int width = 0, height = 0;
-	for (int i=0; i<children.length; i++) {
-		Rectangle rect = children [i].getBounds ();
-		width = Math.max (width, rect.x + rect.width);
-		height = Math.max (height, rect.y + rect.height);
-	}
-	return new Point (width, height);
-}
-
-void releaseChildren () {
-	Control [] children = _getChildren ();
-	for (int i=0; i<children.length; i++) {
-		Control child = children [i];
-		if (!child.isDisposed ()) child.releaseResources ();
-	}
-}
-
-void resizeChildren () {
-	if (lpwp == null) return;
-	do {
-		WINDOWPOS [] currentLpwp = lpwp;
-		lpwp = null;
-		if (!resizeChildren (true, currentLpwp)) {
-			resizeChildren (false, currentLpwp);
-		}
-	} while (lpwp != null);
-}
-
-boolean resizeChildren (boolean defer, WINDOWPOS [] pwp) {
-	if (pwp == null) return true;
-	int hdwp = 0;
-	if (defer) {
-		hdwp = OS.BeginDeferWindowPos (pwp.length);
-		if (hdwp == 0) return false;
-	}
-	for (int i=0; i<pwp.length; i++) {
-		WINDOWPOS wp = pwp [i];
-		if (wp != null) {
-			/*
-			* This code is intentionally commented.  All widgets that
-			* are created by SWT have WS_CLIPSIBLINGS to ensure that
-			* application code does not draw outside of the control.
-			*/
-//			int count = parent.getChildrenCount ();
-//			if (count > 1) {
-//				int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
-//				if ((bits & OS.WS_CLIPSIBLINGS) == 0) wp.flags |= OS.SWP_NOCOPYBITS;
-//			}
-			if (defer) {
-				hdwp = OS.DeferWindowPos (hdwp, wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags);
-				if (hdwp == 0) return false;
-			} else {
-				OS.SetWindowPos (wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags);
-			}
-		}
-	}
-	if (defer) return OS.EndDeferWindowPos (hdwp);
-	return true;
-}
-
-void releaseWidget () {
-	releaseChildren ();
-	super.releaseWidget ();
-	layout = null;
-	tabList = null;
-	lpwp = null;
-}
-
-public boolean setFocus () {
-	checkWidget ();
-	if ((style & SWT.NO_FOCUS) != 0) return false;
-	Control [] children = _getChildren ();
-	for (int i=0; i<children.length; i++) {
-		Control child = children [i];
-		if (child.setRadioFocus ()) return true;
-	}
-	for (int i=0; i<children.length; i++) {
-		Control child = children [i];
-		if (child.setFocus ()) return true;
-	}
-	return super.setFocus ();
-}
-
-/**
- * Sets the layout which is associated with the receiver to be
- * the argument which may be null.
- *
- * @param layout the receiver's new layout or null
- *
- * @exception SWTException <ul>
- *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setLayout (Layout layout) {
-	checkWidget ();
-	this.layout = layout;
-}
-
-/**
- * Sets the tabbing order for the specified controls to
- * match the order that they occur in the argument list.
- *
- * @param tabList the ordered list of controls representing the tab order or null
- *
- * @exception IllegalArgumentException <ul>
- *    <li>ERROR_INVALID_ARGUMENT - if a widget in the tabList is null or has been disposed</li> 
- *    <li>ERROR_INVALID_PARENT - if widget in the tabList is not in the same widget tree</li>
- * </ul>
- * @exception SWTException <ul>
- *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setTabList (Control [] tabList) {
-	checkWidget ();
-	if (tabList != null) {
-		for (int i=0; i<tabList.length; i++) {
-			Control control = tabList [i];
-			if (control == null) error (SWT.ERROR_INVALID_ARGUMENT);
-			if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
-			/*
-			* This code is intentionally commented.
-			* Tab lists are currently only supported
-			* for the direct children of a composite.
-			*/
-//			Shell shell = control.getShell ();
-//			while (control != shell && control != this) {
-//				control = control.parent;
-//			}
-//			if (control != this) error (SWT.ERROR_INVALID_PARENT);
-			if (control.parent != this) error (SWT.ERROR_INVALID_PARENT);
-		}
-		Control [] newList = new Control [tabList.length];
-		System.arraycopy (tabList, 0, newList, 0, tabList.length);
-		tabList = newList;
-	} 
-	this.tabList = tabList;
-}
-
-void setResizeChildren (boolean resize) {
-	if (resize) {
-		resizeChildren ();
-	} else {
-		int count = getChildrenCount ();
-		if (count > 1 && lpwp == null) {
-			lpwp = new WINDOWPOS [count];
-		}
-	}
-}
-
-boolean setTabGroupFocus () {
-	if (isTabItem ()) return setTabItemFocus ();
-	if ((style & SWT.NO_FOCUS) == 0) {
-		boolean takeFocus = true;
-		if ((state & CANVAS) != 0) takeFocus = hooksKeys ();
-		if (takeFocus && setTabItemFocus ()) return true;
-	}
-	Control [] children = _getChildren ();
-	for (int i=0; i<children.length; i++) {
-		Control child = children [i];
-		if (child.isTabItem () && child.setRadioFocus ()) return true;
-	}
-	for (int i=0; i<children.length; i++) {
-		Control child = children [i];
-		if (child.isTabItem () && child.setTabItemFocus ()) return true;
-	}
-	return false;
-}
-
-boolean setTabItemFocus () {
-	if ((style & SWT.NO_FOCUS) == 0) {
-		boolean takeFocus = true;
-		if ((state & CANVAS) != 0) takeFocus = hooksKeys ();
-		if (takeFocus) {
-			if (!isShowing ()) return false;
-			if (forceFocus ()) return true;
-		}
-	}
-	return super.setTabItemFocus ();
-}
-
-String toolTipText (NMTTDISPINFO hdr) {
-	if ((hdr.uFlags & OS.TTF_IDISHWND) == 0) {
-		return null;
-	}
-	int hwnd = hdr.idFrom;
-	if (hwnd == 0) return null;
-	Control control = WidgetTable.get (hwnd);
-	if (control == null) return null;
-	return control.toolTipText;
-}
-
-boolean translateMnemonic (char key) {
-	if (super.translateMnemonic (key)) return true;
-	Control [] children = _getChildren ();
-	for (int i=0; i<children.length; i++) {
-		Control child = children [i];
-		if (child.translateMnemonic (key)) return true;
-	}
-	return false;
-}
-
-void updateFont (Font oldFont, Font newFont) {
-	Control [] children = _getChildren ();
-	for (int i=0; i<children.length; i++) {
-		Control control = children [i];
-		if (!control.isDisposed ()) {
-			control.updateFont (oldFont, newFont);
-		}
-	}
-	super.updateFont (oldFont, newFont);
-	layout (true);
-}
-
-int widgetStyle () {
-	/* Force clipping of children by setting WS_CLIPCHILDREN */
-	return super.widgetStyle () | OS.WS_CLIPCHILDREN;
-}
-
-LRESULT WM_ERASEBKGND (int wParam, int lParam) {
-	LRESULT result = super.WM_ERASEBKGND (wParam, lParam);
-	if (result != null) return result;
-	if ((state & CANVAS) != 0) {
-		if ((style & SWT.NO_BACKGROUND) != 0) return LRESULT.ONE;
-	}
-	return result;
-}
-
-LRESULT WM_GETDLGCODE (int wParam, int lParam) {
-	LRESULT result = super.WM_GETDLGCODE (wParam, lParam);
-	if (result != null) return result;
-	if ((state & CANVAS) != 0) {
-		if ((style & SWT.NO_FOCUS) != 0) return new LRESULT (OS.DLGC_STATIC);
-		if (hooksKeys ()) {
-			int flags = OS.DLGC_WANTALLKEYS | OS.DLGC_WANTARROWS | OS.DLGC_WANTTAB;
-			return new LRESULT (flags);
-		}
-		int count = getChildrenCount ();
-		if (count != 0) return new LRESULT (OS.DLGC_STATIC);
-	}
-	return result;
-}
-
-LRESULT WM_GETFONT (int wParam, int lParam) {
-	LRESULT result = super.WM_GETFONT (wParam, lParam);
-	if (result != null) return result;
-	int code = callWindowProc (OS.WM_GETFONT, wParam, lParam);
-	if (code != 0) return new LRESULT (code);
-	if (font == 0) font = defaultFont ();
-	return new LRESULT (font);
-}
-
-LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {
-	LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam);
-
-	/* Set focus for a canvas with no children */
-	if ((state & CANVAS) != 0) {
-		if ((style & SWT.NO_FOCUS) != 0) return result;
-		if (OS.GetWindow (handle, OS.GW_CHILD) == 0) setFocus ();
-	}
-	return result;
-}
-
-LRESULT WM_NOTIFY (int wParam, int lParam) {
-	if (!OS.IsWinCE) {
-		NMHDR hdr = new NMHDR ();
-		OS.MoveMemory (hdr, lParam, NMHDR.sizeof);
-		switch (hdr.code) {
-			/*
-			* Feature in Windows.  When the tool tip control is
-			* created, the parent of the tool tip is the shell.
-			* If SetParent () is used to reparent the tool bar
-			* into a new shell, the tool tip is not reparented
-			* and pops up underneath the new shell.  The fix is
-			* to make sure the tool tip is a topmost window.
-			*/
-			case OS.TTN_SHOW:
-			case OS.TTN_POP: {
-				/*
-				* Bug in Windows 98 and NT.  Setting the tool tip to be the
-				* top most window using HWND_TOPMOST can result in a parent
-				* dialog shell being moved behind its parent if the dialog
-				* has a sibling that is currently on top.  The fix is to lock
-				* the z-order of the active window.
-				*/
-				Display display = getDisplay ();
-				display.lockActiveWindow = true;
-				int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOSIZE;
-				int hwndInsertAfter = hdr.code == OS.TTN_SHOW ? OS.HWND_TOPMOST : OS.HWND_NOTOPMOST;
-				OS.SetWindowPos (hdr.hwndFrom, hwndInsertAfter, 0, 0, 0, 0, flags);
-				display.lockActiveWindow = false;
-				break;
-			}
-			/*
-			* Bug in Windows 98.  For some reason, the tool bar control
-			* sends both TTN_GETDISPINFOW and TTN_GETDISPINFOA to get
-			* the tool tip text and the tab folder control sends only 
-			* TTN_GETDISPINFOW.  The fix is to handle only TTN_GETDISPINFOW,
-			* even though it should never be sent on Windows 98.
-			*
-			* NOTE:  Because the size of NMTTDISPINFO differs between
-			* Windows 98 and NT, guard against the case where the wrong
-			* kind of message occurs by inlining the memory moves and
-			* the UNICODE conversion code.
-			*/
-			case OS.TTN_GETDISPINFOA:
-			case OS.TTN_GETDISPINFOW: {
-				NMTTDISPINFO lpnmtdi = new NMTTDISPINFO ();
-				if (hdr.code == OS.TTN_GETDISPINFOA) {
-					OS.MoveMemoryA (lpnmtdi, lParam, NMTTDISPINFO.sizeofA);
-				} else {
-					OS.MoveMemoryW (lpnmtdi, lParam, NMTTDISPINFO.sizeofW);
-				}
-				String string = toolTipText (lpnmtdi);
-				if (string != null) {
-					Shell shell = getShell ();
-					string = Display.withCrLf (string);
-					int length = string.length ();
-					char [] chars = new char [length + 1];
-					string.getChars (0, length, chars, 0);	
-					if (hdr.code == OS.TTN_GETDISPINFOA) {
-						byte [] bytes = new byte [chars.length * 2];
-						OS.WideCharToMultiByte (OS.CP_ACP, 0, chars, chars.length, bytes, bytes.length, null, null);
-						shell.setToolTipText (lpnmtdi, bytes);
-						OS.MoveMemoryA (lParam, lpnmtdi, NMTTDISPINFO.sizeofA);
-					} else {
-						shell.setToolTipText (lpnmtdi, chars);
-						OS.MoveMemoryW (lParam, lpnmtdi, NMTTDISPINFO.sizeofW);
-					}
-					return LRESULT.ZERO;
-				}
-				break;
-			}
-		}
-	}
-	return super.WM_NOTIFY (wParam, lParam);
-}
-
-LRESULT WM_PAINT (int wParam, int lParam) {
-	if ((state & CANVAS) == 0) {
-		return super.WM_PAINT (wParam, lParam);
-	}
-	
-	/*
-	* This code is intentionally commented.  Don't exit
-	* early because the background must still be painted,
-	* even though no application code will be painting
-	* the widget.
-	*
-	* Do not uncomment this code.
-	*/
-//	if (!hooks (SWT.Paint)) return null;
-
-	/* Get the damage */
-	int [] lpRgnData = null;
-	boolean isComplex = false;
-	boolean exposeRegion = false;
-	if ((style & SWT.NO_MERGE_PAINTS) != 0) {
-		int rgn = OS.CreateRectRgn (0, 0, 0, 0);
-		isComplex = OS.GetUpdateRgn (handle, rgn, false) == OS.COMPLEXREGION;
-		if (isComplex) {
-			int nBytes = OS.GetRegionData (rgn, 0, null);
-			lpRgnData = new int [nBytes / 4];
-			exposeRegion = OS.GetRegionData (rgn, nBytes, lpRgnData) != 0;
-		}
-		OS.DeleteObject (rgn);
-	}
-
-	/* Set the clipping bits */
-	int oldBits = 0;
-	if (!OS.IsWinCE) {
-		oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE);
-		int newBits = oldBits | OS.WS_CLIPSIBLINGS | OS.WS_CLIPCHILDREN;	
-		OS.SetWindowLong (handle, OS.GWL_STYLE, newBits);
-	}
-
-	/* Create the paint GC */
-	PAINTSTRUCT ps = new PAINTSTRUCT ();
-	GCData data = new GCData ();
-	data.ps = ps;
-	GC gc = GC.win32_new (this, data);
-	int hDC = gc.handle;
-	
-	/* Send the paint event */
-	Event event = new Event ();
-	event.gc = gc;
-	if (isComplex && exposeRegion) {
-		RECT rect = new RECT ();
-		int count = lpRgnData [2];
-		for (int i=0; i<count; i++) {
-			OS.SetRect (rect,
-				lpRgnData [8 + (i << 2)],
-				lpRgnData [8 + (i << 2) + 1],
-				lpRgnData [8 + (i << 2) + 2],
-				lpRgnData [8 + (i << 2) + 3]);
-			if ((style & SWT.NO_BACKGROUND) == 0) {
-				drawBackground (hDC, rect);
-			}
-			event.x = rect.left;
-			event.y = rect.top;
-			event.width = rect.right - rect.left;
-			event.height = rect.bottom - rect.top;
-			event.count = count - 1 - i;
-			/*
-			* It is possible (but unlikely), that application
-			* code could have disposed the widget in the paint
-			* event.  If this happens, attempt to give back the
-			* paint GC anyways because this is a scarce Windows
-			* resource.
-			*/
-			sendEvent (SWT.Paint, event);
-			if (isDisposed ()) break;
-		}
-	} else {
-		if ((style & SWT.NO_BACKGROUND) == 0) {
-			RECT rect = new RECT ();
-			OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom);
-			drawBackground (hDC, rect);
-		}
-		event.x = ps.left;
-		event.y = ps.top;
-		event.width = ps.right - ps.left;
-		event.height = ps.bottom - ps.top;
-		sendEvent (SWT.Paint, event);
-	}
-	// widget could be disposed at this point
-
-	/* Dispose the paint GC */
-	event.gc = null;
-	gc.dispose ();
-
-	if (!OS.IsWinCE) { 
-		/*
-		* It is possible (but unlikely), that application
-		* code could have disposed the widget in the paint
-		* event.  If this happens, don't attempt to restore
-		* the style.
-		*/
-		if (!isDisposed ()) {
-			OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits);
-		}
-	}
-	return LRESULT.ZERO;
-}
-
-LRESULT WM_SETFONT (int wParam, int lParam) {
-	return super.WM_SETFONT (font = wParam, lParam);
-}
-
-LRESULT WM_SIZE (int wParam, int lParam) {
-	
-	/* Begin deferred window positioning */
-	setResizeChildren (false);
-	
-	/* Resize and Layout */
-	LRESULT result = super.WM_SIZE (wParam, lParam);
-	/*
-	* It is possible (but unlikely), that application
-	* code could have disposed the widget in the resize
-	* event.  If this happens, end the processing of the
-	* Windows message by returning the result of the
-	* WM_SIZE message.
-	*/
-	if (isDisposed ()) return result;
-	if (layout != null) layout.layout (this, false);
-
-	/* End deferred window positioning */
-	setResizeChildren (true);
-	
-	/* Damage the widget to cause a repaint */
-	if ((state & CANVAS) != 0) {
-		if ((style & SWT.NO_REDRAW_RESIZE) == 0) {
-			if (hooks (SWT.Paint)) {
-				OS.InvalidateRect (handle, null, true);
-			}
-		}
-	}
-	return result;
-}
-
-LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) {
-	Control [] children = _getChildren ();
-	for (int i=0; i<children.length; i++) {
-		int hwndChild = children [i].handle;
-		OS.SendMessage (hwndChild, OS.WM_SYSCOLORCHANGE, 0, 0);
-	}
-	return null;
-}
-
-LRESULT WM_SYSCOMMAND (int wParam, int lParam) {
-	LRESULT result = super.WM_SYSCOMMAND (wParam, lParam);
-	if (result != null) return result;
-		
-	/*
-	* Check to see if the command is a system command or
-	* a user menu item that was added to the system menu.
-	*/
-	if ((wParam & 0xF000) == 0) return result;
-
-	/*
-	* Bug in Windows.  When a vertical or horizontal scroll bar is
-	* hidden or shown while the opposite scroll bar is being scrolled
-	* by the user (with WM_HSCROLL code SB_LINEDOWN), the scroll bar
-	* does not redraw properly.  The fix is to detect this case and
-	* redraw the non-client area.
-	*/
-	if (!OS.IsWinCE) {
-		int cmd = wParam & 0xFFF0;
-		switch (cmd) {
-			case OS.SC_HSCROLL:
-			case OS.SC_VSCROLL:
-				boolean showHBar = horizontalBar != null && horizontalBar.getVisible ();
-				boolean showVBar = verticalBar != null && verticalBar.getVisible ();
-				int code = callWindowProc (OS.WM_SYSCOMMAND, wParam, lParam);
-				if ((showHBar != (horizontalBar != null && horizontalBar.getVisible ())) ||
-					(showVBar != (verticalBar != null && verticalBar.getVisible ()))) {
-						int flags = OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_UPDATENOW;
-						OS.RedrawWindow (handle, null, 0, flags);
-					}		
-				if (code == 0) return LRESULT.ZERO;
-				return new LRESULT (code);
-		}
-	}
-	/* Return the result */
-	return result;
-}
-
-}
+ * http://www.eclipse.org/legal/cpl-v10.html
+ */
+
+import org.eclipse.swt.internal.win32.*;
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+
+/**
+ * Instances of this class are controls which are capable
+ * of containing other controls.
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>NO_BACKGROUND, NO_FOCUS, NO_MERGE_PAINTS, NO_REDRAW_RESIZE, NO_RADIO_GROUP</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>(none)</dd>
+ * </dl>
+ * <p>
+ * Note: The <code>NO_BACKGROUND</code>, <code>NO_FOCUS</code>, <code>NO_MERGE_PAINTS</code>,
+ * and <code>NO_REDRAW_RESIZE</code> styles are intended for use with <code>Canvas</code>.
+ * They can be used with <code>Composite</code> if you are drawing your own, but their
+ * behavior is undefined if they are used with subclasses of <code>Composite</code> other
+ * than <code>Canvas</code>.
+ * </p><p>
+ * This class may be subclassed by custom control implementors
+ * who are building controls that are constructed from aggregates
+ * of other controls.
+ * </p>
+ *
+ * @see Canvas
+ */
+
+public class Composite extends Scrollable {
+	Layout layout;
+	int font;
+	WINDOWPOS [] lpwp;
+	Control [] tabList;
+	
+/**
+ * Prevents uninitialized instances from being created outside the package.
+ */
+Composite () {
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together 
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a widget which will be the parent of the new instance (cannot be null)
+ * @param style the style of widget to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT#NO_BACKGROUND
+ * @see SWT#NO_FOCUS
+ * @see SWT#NO_MERGE_PAINTS
+ * @see SWT#NO_REDRAW_RESIZE
+ * @see SWT#NO_RADIO_GROUP
+ * @see Widget#getStyle
+ */
+public Composite (Composite parent, int style) {
+	super (parent, style);
+}
+Control [] _getChildren () {
+	int count = 0;
+	int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
+	if (hwndChild == 0) return new Control [0];
+	while (hwndChild != 0) {
+		count++;
+		hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
+	}
+	Control [] children = new Control [count];
+	int index = 0;
+	hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
+	while (hwndChild != 0) {
+		Control control = WidgetTable.get (hwndChild);
+		if (control != null && control != this) {
+			children [index++] = control;
+		}
+		hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
+	}
+	if (count == index) return children;
+	Control [] newChildren = new Control [index];
+	System.arraycopy (children, 0, newChildren, 0, index);
+	return newChildren;
+}
+
+Control [] _getTabList () {
+	if (tabList == null) return tabList;
+	int count = 0;
+	for (int i=0; i<tabList.length; i++) {
+		if (!tabList [i].isDisposed ()) count++;
+	}
+	if (count == tabList.length) return tabList;
+	Control [] newList = new Control [count];
+	int index = 0;
+	for (int i=0; i<tabList.length; i++) {
+		if (!tabList [i].isDisposed ()) {
+			newList [index++] = tabList [i];
+		}
+	}
+	tabList = newList;
+	return tabList;
+}
+
+protected void checkSubclass () {
+	/* Do nothing - Subclassing is allowed */
+}
+
+Control [] computeTabList () {
+	Control result [] = super.computeTabList ();
+	if (result.length == 0) return result;
+	Control [] list = tabList != null ? _getTabList () : _getChildren ();
+	for (int i=0; i<list.length; i++) {
+		Control child = list [i];
+		Control [] childList = child.computeTabList ();
+		if (childList.length != 0) {
+			Control [] newResult = new Control [result.length + childList.length];
+			System.arraycopy (result, 0, newResult, 0, result.length);
+			System.arraycopy (childList, 0, newResult, result.length, childList.length);
+			result = newResult;
+		}
+	}
+	return result;
+}
+
+public Point computeSize (int wHint, int hHint, boolean changed) {
+	checkWidget ();
+	Point size;
+	if (layout != null) {
+		if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) {
+			size = layout.computeSize (this, wHint, hHint, changed);
+		} else {
+			size = new Point (wHint, hHint);
+		}
+	} else {
+		size = minimumSize ();
+	}
+	if (size.x == 0) size.x = DEFAULT_WIDTH;
+	if (size.y == 0) size.y = DEFAULT_HEIGHT;
+	if (wHint != SWT.DEFAULT) size.x = wHint;
+	if (hHint != SWT.DEFAULT) size.y = hHint;
+	Rectangle trim = computeTrim (0, 0, size.x, size.y);
+	return new Point (trim.width, trim.height);
+}
+
+void createHandle () {
+	super.createHandle ();
+	state |= CANVAS;
+}
+
+/**
+ * Returns an array containing the receiver's children.
+ * <p>
+ * Note: This is not the actual structure used by the receiver
+ * to maintain its list of children, so modifying the array will
+ * not affect the receiver. 
+ * </p>
+ *
+ * @return an array of children
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Control [] getChildren () {
+	checkWidget ();
+	return _getChildren ();
+}
+
+int getChildrenCount () {
+	/*
+	* NOTE: The current implementation will count
+	* non-registered children.
+	*/
+	int count = 0;
+	int hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
+	while (hwndChild != 0) {
+		count++;
+		hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
+	}
+	return count;
+}
+
+/**
+ * Returns layout which is associated with the receiver, or
+ * null if one has not been set.
+ *
+ * @return the receiver's layout or null
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Layout getLayout () {
+	checkWidget ();
+	return layout;
+}
+
+/**
+ * Gets the last specified tabbing order for the control.
+ *
+ * @return tabList the ordered list of controls representing the tab order
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ * 
+ * @see #setTabList
+ */
+public Control [] getTabList () {
+	checkWidget ();
+	Control [] tabList = _getTabList ();
+	if (tabList == null) {
+		int count = 0;
+		Control [] list =_getChildren ();
+		for (int i=0; i<list.length; i++) {
+			if (list [i].isTabGroup ()) count++;
+		}
+		tabList = new Control [count];
+		int index = 0;
+		for (int i=0; i<list.length; i++) {
+			if (list [i].isTabGroup ()) {
+				tabList [index++] = list [i];
+			}
+		}
+	}
+	return tabList;
+}
+
+boolean hooksKeys () {
+	return hooks (SWT.KeyDown) || hooks (SWT.KeyUp);
+}
+
+/**
+ * If the receiver has a layout, asks the layout to <em>lay out</em>
+ * (that is, set the size and location of) the receiver's children. 
+ * If the receiver does not have a layout, do nothing.
+ * <p>
+ * This is equivalent to calling <code>layout(true)</code>.
+ * </p>
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void layout () {
+	checkWidget ();
+	layout (true);
+}
+
+/**
+ * If the receiver has a layout, asks the layout to <em>lay out</em>
+ * (that is, set the size and location of) the receiver's children. 
+ * If the the argument is <code>true</code> the layout must not rely
+ * on any cached information it is keeping about the children. If it
+ * is <code>false</code> the layout may (potentially) simplify the
+ * work it is doing by assuming that the state of the none of the
+ * receiver's children has changed since the last layout.
+ * If the receiver does not have a layout, do nothing.
+ *
+ * @param changed <code>true</code> if the layout must flush its caches, and <code>false</code> otherwise
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void layout (boolean changed) {
+	checkWidget ();
+	if (layout == null) return;
+	setResizeChildren (false);
+	layout.layout (this, changed);
+	setResizeChildren (true);
+}
+
+Point minimumSize () {
+	Control [] children = _getChildren ();
+	int width = 0, height = 0;
+	for (int i=0; i<children.length; i++) {
+		Rectangle rect = children [i].getBounds ();
+		width = Math.max (width, rect.x + rect.width);
+		height = Math.max (height, rect.y + rect.height);
+	}
+	return new Point (width, height);
+}
+
+void releaseChildren () {
+	Control [] children = _getChildren ();
+	for (int i=0; i<children.length; i++) {
+		Control child = children [i];
+		if (!child.isDisposed ()) child.releaseResources ();
+	}
+}
+
+void resizeChildren () {
+	if (lpwp == null) return;
+	do {
+		WINDOWPOS [] currentLpwp = lpwp;
+		lpwp = null;
+		if (!resizeChildren (true, currentLpwp)) {
+			resizeChildren (false, currentLpwp);
+		}
+	} while (lpwp != null);
+}
+
+boolean resizeChildren (boolean defer, WINDOWPOS [] pwp) {
+	if (pwp == null) return true;
+	int hdwp = 0;
+	if (defer) {
+		hdwp = OS.BeginDeferWindowPos (pwp.length);
+		if (hdwp == 0) return false;
+	}
+	for (int i=0; i<pwp.length; i++) {
+		WINDOWPOS wp = pwp [i];
+		if (wp != null) {
+			/*
+			* This code is intentionally commented.  All widgets that
+			* are created by SWT have WS_CLIPSIBLINGS to ensure that
+			* application code does not draw outside of the control.
+			*/
+//			int count = parent.getChildrenCount ();
+//			if (count > 1) {
+//				int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+//				if ((bits & OS.WS_CLIPSIBLINGS) == 0) wp.flags |= OS.SWP_NOCOPYBITS;
+//			}
+			if (defer) {
+				hdwp = OS.DeferWindowPos (hdwp, wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags);
+				if (hdwp == 0) return false;
+			} else {
+				OS.SetWindowPos (wp.hwnd, 0, wp.x, wp.y, wp.cx, wp.cy, wp.flags);
+			}
+		}
+	}
+	if (defer) return OS.EndDeferWindowPos (hdwp);
+	return true;
+}
+
+void releaseWidget () {
+	releaseChildren ();
+	super.releaseWidget ();
+	layout = null;
+	tabList = null;
+	lpwp = null;
+}
+
+public boolean setFocus () {
+	checkWidget ();
+	if ((style & SWT.NO_FOCUS) != 0) return false;
+	Control [] children = _getChildren ();
+	for (int i=0; i<children.length; i++) {
+		Control child = children [i];
+		if (child.setRadioFocus ()) return true;
+	}
+	for (int i=0; i<children.length; i++) {
+		Control child = children [i];
+		if (child.setFocus ()) return true;
+	}
+	return super.setFocus ();
+}
+
+/**
+ * Sets the layout which is associated with the receiver to be
+ * the argument which may be null.
+ *
+ * @param layout the receiver's new layout or null
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setLayout (Layout layout) {
+	checkWidget ();
+	this.layout = layout;
+}
+
+/**
+ * Sets the tabbing order for the specified controls to
+ * match the order that they occur in the argument list.
+ *
+ * @param tabList the ordered list of controls representing the tab order or null
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_INVALID_ARGUMENT - if a widget in the tabList is null or has been disposed</li> 
+ *    <li>ERROR_INVALID_PARENT - if widget in the tabList is not in the same widget tree</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setTabList (Control [] tabList) {
+	checkWidget ();
+	if (tabList != null) {
+		for (int i=0; i<tabList.length; i++) {
+			Control control = tabList [i];
+			if (control == null) error (SWT.ERROR_INVALID_ARGUMENT);
+			if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
+			/*
+			* This code is intentionally commented.
+			* Tab lists are currently only supported
+			* for the direct children of a composite.
+			*/
+//			Shell shell = control.getShell ();
+//			while (control != shell && control != this) {
+//				control = control.parent;
+//			}
+//			if (control != this) error (SWT.ERROR_INVALID_PARENT);
+			if (control.parent != this) error (SWT.ERROR_INVALID_PARENT);
+		}
+		Control [] newList = new Control [tabList.length];
+		System.arraycopy (tabList, 0, newList, 0, tabList.length);
+		tabList = newList;
+	} 
+	this.tabList = tabList;
+}
+
+void setResizeChildren (boolean resize) {
+	if (resize) {
+		resizeChildren ();
+	} else {
+		int count = getChildrenCount ();
+		if (count > 1 && lpwp == null) {
+			lpwp = new WINDOWPOS [count];
+		}
+	}
+}
+
+boolean setTabGroupFocus () {
+	if (isTabItem ()) return setTabItemFocus ();
+	if ((style & SWT.NO_FOCUS) == 0) {
+		boolean takeFocus = true;
+		if ((state & CANVAS) != 0) takeFocus = hooksKeys ();
+		if (takeFocus && setTabItemFocus ()) return true;
+	}
+	Control [] children = _getChildren ();
+	for (int i=0; i<children.length; i++) {
+		Control child = children [i];
+		if (child.isTabItem () && child.setRadioFocus ()) return true;
+	}
+	for (int i=0; i<children.length; i++) {
+		Control child = children [i];
+		if (child.isTabItem () && child.setTabItemFocus ()) return true;
+	}
+	return false;
+}
+
+boolean setTabItemFocus () {
+	if ((style & SWT.NO_FOCUS) == 0) {
+		boolean takeFocus = true;
+		if ((state & CANVAS) != 0) takeFocus = hooksKeys ();
+		if (takeFocus) {
+			if (!isShowing ()) return false;
+			if (forceFocus ()) return true;
+		}
+	}
+	return super.setTabItemFocus ();
+}
+
+String toolTipText (NMTTDISPINFO hdr) {
+	if ((hdr.uFlags & OS.TTF_IDISHWND) == 0) {
+		return null;
+	}
+	int hwnd = hdr.idFrom;
+	if (hwnd == 0) return null;
+	Control control = WidgetTable.get (hwnd);
+	if (control == null) return null;
+	return control.toolTipText;
+}
+
+boolean translateMnemonic (char key) {
+	if (super.translateMnemonic (key)) return true;
+	Control [] children = _getChildren ();
+	for (int i=0; i<children.length; i++) {
+		Control child = children [i];
+		if (child.translateMnemonic (key)) return true;
+	}
+	return false;
+}
+
+void updateFont (Font oldFont, Font newFont) {
+	Control [] children = _getChildren ();
+	for (int i=0; i<children.length; i++) {
+		Control control = children [i];
+		if (!control.isDisposed ()) {
+			control.updateFont (oldFont, newFont);
+		}
+	}
+	super.updateFont (oldFont, newFont);
+	layout (true);
+}
+
+int widgetStyle () {
+	/* Force clipping of children by setting WS_CLIPCHILDREN */
+	return super.widgetStyle () | OS.WS_CLIPCHILDREN;
+}
+
+LRESULT WM_ERASEBKGND (int wParam, int lParam) {
+	LRESULT result = super.WM_ERASEBKGND (wParam, lParam);
+	if (result != null) return result;
+	if ((state & CANVAS) != 0) {
+		if ((style & SWT.NO_BACKGROUND) != 0) return LRESULT.ONE;
+	}
+	return result;
+}
+
+LRESULT WM_GETDLGCODE (int wParam, int lParam) {
+	LRESULT result = super.WM_GETDLGCODE (wParam, lParam);
+	if (result != null) return result;
+	if ((state & CANVAS) != 0) {
+		if ((style & SWT.NO_FOCUS) != 0) return new LRESULT (OS.DLGC_STATIC);
+		if (hooksKeys ()) {
+			int flags = OS.DLGC_WANTALLKEYS | OS.DLGC_WANTARROWS | OS.DLGC_WANTTAB;
+			return new LRESULT (flags);
+		}
+		int count = getChildrenCount ();
+		if (count != 0) return new LRESULT (OS.DLGC_STATIC);
+	}
+	return result;
+}
+
+LRESULT WM_GETFONT (int wParam, int lParam) {
+	LRESULT result = super.WM_GETFONT (wParam, lParam);
+	if (result != null) return result;
+	int code = callWindowProc (OS.WM_GETFONT, wParam, lParam);
+	if (code != 0) return new LRESULT (code);
+	if (font == 0) font = defaultFont ();
+	return new LRESULT (font);
+}
+
+LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {
+	LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam);
+
+	/* Set focus for a canvas with no children */
+	if ((state & CANVAS) != 0) {
+		if ((style & SWT.NO_FOCUS) != 0) return result;
+		if (OS.GetWindow (handle, OS.GW_CHILD) == 0) setFocus ();
+	}
+	return result;
+}
+
+LRESULT WM_NOTIFY (int wParam, int lParam) {
+	if (!OS.IsWinCE) {
+		NMHDR hdr = new NMHDR ();
+		OS.MoveMemory (hdr, lParam, NMHDR.sizeof);
+		switch (hdr.code) {
+			/*
+			* Feature in Windows.  When the tool tip control is
+			* created, the parent of the tool tip is the shell.
+			* If SetParent () is used to reparent the tool bar
+			* into a new shell, the tool tip is not reparented
+			* and pops up underneath the new shell.  The fix is
+			* to make sure the tool tip is a topmost window.
+			*/
+			case OS.TTN_SHOW:
+			case OS.TTN_POP: {
+				/*
+				* Bug in Windows 98 and NT.  Setting the tool tip to be the
+				* top most window using HWND_TOPMOST can result in a parent
+				* dialog shell being moved behind its parent if the dialog
+				* has a sibling that is currently on top.  The fix is to lock
+				* the z-order of the active window.
+				*/
+				Display display = getDisplay ();
+				display.lockActiveWindow = true;
+				int flags = OS.SWP_NOACTIVATE | OS.SWP_NOMOVE | OS.SWP_NOSIZE;
+				int hwndInsertAfter = hdr.code == OS.TTN_SHOW ? OS.HWND_TOPMOST : OS.HWND_NOTOPMOST;
+				OS.SetWindowPos (hdr.hwndFrom, hwndInsertAfter, 0, 0, 0, 0, flags);
+				display.lockActiveWindow = false;
+				break;
+			}
+			/*
+			* Bug in Windows 98.  For some reason, the tool bar control
+			* sends both TTN_GETDISPINFOW and TTN_GETDISPINFOA to get
+			* the tool tip text and the tab folder control sends only 
+			* TTN_GETDISPINFOW.  The fix is to handle only TTN_GETDISPINFOW,
+			* even though it should never be sent on Windows 98.
+			*
+			* NOTE:  Because the size of NMTTDISPINFO differs between
+			* Windows 98 and NT, guard against the case where the wrong
+			* kind of message occurs by inlining the memory moves and
+			* the UNICODE conversion code.
+			*/
+			case OS.TTN_GETDISPINFOA:
+			case OS.TTN_GETDISPINFOW: {
+				NMTTDISPINFO lpnmtdi = new NMTTDISPINFO ();
+				if (hdr.code == OS.TTN_GETDISPINFOA) {
+					OS.MoveMemoryA (lpnmtdi, lParam, NMTTDISPINFO.sizeofA);
+				} else {
+					OS.MoveMemoryW (lpnmtdi, lParam, NMTTDISPINFO.sizeofW);
+				}
+				String string = toolTipText (lpnmtdi);
+				if (string != null) {
+					Shell shell = getShell ();
+					string = Display.withCrLf (string);
+					int length = string.length ();
+					char [] chars = new char [length + 1];
+					string.getChars (0, length, chars, 0);	
+					if (hdr.code == OS.TTN_GETDISPINFOA) {
+						byte [] bytes = new byte [chars.length * 2];
+						OS.WideCharToMultiByte (OS.CP_ACP, 0, chars, chars.length, bytes, bytes.length, null, null);
+						shell.setToolTipText (lpnmtdi, bytes);
+						OS.MoveMemoryA (lParam, lpnmtdi, NMTTDISPINFO.sizeofA);
+					} else {
+						shell.setToolTipText (lpnmtdi, chars);
+						OS.MoveMemoryW (lParam, lpnmtdi, NMTTDISPINFO.sizeofW);
+					}
+					return LRESULT.ZERO;
+				}
+				break;
+			}
+		}
+	}
+	return super.WM_NOTIFY (wParam, lParam);
+}
+
+LRESULT WM_PAINT (int wParam, int lParam) {
+	if ((state & CANVAS) == 0) {
+		return super.WM_PAINT (wParam, lParam);
+	}
+	
+	/*
+	* This code is intentionally commented.  Don't exit
+	* early because the background must still be painted,
+	* even though no application code will be painting
+	* the widget.
+	*
+	* Do not uncomment this code.
+	*/
+//	if (!hooks (SWT.Paint)) return null;
+
+	/* Get the damage */
+	int [] lpRgnData = null;
+	boolean isComplex = false;
+	boolean exposeRegion = false;
+	if ((style & SWT.NO_MERGE_PAINTS) != 0) {
+		int rgn = OS.CreateRectRgn (0, 0, 0, 0);
+		isComplex = OS.GetUpdateRgn (handle, rgn, false) == OS.COMPLEXREGION;
+		if (isComplex) {
+			int nBytes = OS.GetRegionData (rgn, 0, null);
+			lpRgnData = new int [nBytes / 4];
+			exposeRegion = OS.GetRegionData (rgn, nBytes, lpRgnData) != 0;
+		}
+		OS.DeleteObject (rgn);
+	}
+
+	/* Set the clipping bits */
+	int oldBits = 0;
+	if (!OS.IsWinCE) {
+		oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE);
+		int newBits = oldBits | OS.WS_CLIPSIBLINGS | OS.WS_CLIPCHILDREN;	
+		OS.SetWindowLong (handle, OS.GWL_STYLE, newBits);
+	}
+
+	/* Create the paint GC */
+	PAINTSTRUCT ps = new PAINTSTRUCT ();
+	GCData data = new GCData ();
+	data.ps = ps;
+	GC gc = GC.win32_new (this, data);
+	int hDC = gc.handle;
+	
+	/* Send the paint event */
+	Event event = new Event ();
+	event.gc = gc;
+	if (isComplex && exposeRegion) {
+		RECT rect = new RECT ();
+		int count = lpRgnData [2];
+		for (int i=0; i<count; i++) {
+			OS.SetRect (rect,
+				lpRgnData [8 + (i << 2)],
+				lpRgnData [8 + (i << 2) + 1],
+				lpRgnData [8 + (i << 2) + 2],
+				lpRgnData [8 + (i << 2) + 3]);
+			if ((style & SWT.NO_BACKGROUND) == 0) {
+				drawBackground (hDC, rect);
+			}
+			event.x = rect.left;
+			event.y = rect.top;
+			event.width = rect.right - rect.left;
+			event.height = rect.bottom - rect.top;
+			event.count = count - 1 - i;
+			/*
+			* It is possible (but unlikely), that application
+			* code could have disposed the widget in the paint
+			* event.  If this happens, attempt to give back the
+			* paint GC anyways because this is a scarce Windows
+			* resource.
+			*/
+			sendEvent (SWT.Paint, event);
+			if (isDisposed ()) break;
+		}
+	} else {
+		if ((style & SWT.NO_BACKGROUND) == 0) {
+			RECT rect = new RECT ();
+			OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom);
+			drawBackground (hDC, rect);
+		}
+		event.x = ps.left;
+		event.y = ps.top;
+		event.width = ps.right - ps.left;
+		event.height = ps.bottom - ps.top;
+		sendEvent (SWT.Paint, event);
+	}
+	// widget could be disposed at this point
+
+	/* Dispose the paint GC */
+	event.gc = null;
+	gc.dispose ();
+
+	if (!OS.IsWinCE) { 
+		/*
+		* It is possible (but unlikely), that application
+		* code could have disposed the widget in the paint
+		* event.  If this happens, don't attempt to restore
+		* the style.
+		*/
+		if (!isDisposed ()) {
+			OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits);
+		}
+	}
+	return LRESULT.ZERO;
+}
+
+LRESULT WM_SETFONT (int wParam, int lParam) {
+	return super.WM_SETFONT (font = wParam, lParam);
+}
+
+LRESULT WM_SIZE (int wParam, int lParam) {
+	
+	/* Begin deferred window positioning */
+	setResizeChildren (false);
+	
+	/* Resize and Layout */
+	LRESULT result = super.WM_SIZE (wParam, lParam);
+	/*
+	* It is possible (but unlikely), that application
+	* code could have disposed the widget in the resize
+	* event.  If this happens, end the processing of the
+	* Windows message by returning the result of the
+	* WM_SIZE message.
+	*/
+	if (isDisposed ()) return result;
+	if (layout != null) layout.layout (this, false);
+
+	/* End deferred window positioning */
+	setResizeChildren (true);
+	
+	/* Damage the widget to cause a repaint */
+	if ((state & CANVAS) != 0) {
+		if ((style & SWT.NO_REDRAW_RESIZE) == 0) {
+			if (hooks (SWT.Paint)) {
+				OS.InvalidateRect (handle, null, true);
+			}
+		}
+	}
+	return result;
+}
+
+LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) {
+	Control [] children = _getChildren ();
+	for (int i=0; i<children.length; i++) {
+		int hwndChild = children [i].handle;
+		OS.SendMessage (hwndChild, OS.WM_SYSCOLORCHANGE, 0, 0);
+	}
+	return null;
+}
+
+LRESULT WM_SYSCOMMAND (int wParam, int lParam) {
+	LRESULT result = super.WM_SYSCOMMAND (wParam, lParam);
+	if (result != null) return result;
+		
+	/*
+	* Check to see if the command is a system command or
+	* a user menu item that was added to the system menu.
+	*/
+	if ((wParam & 0xF000) == 0) return result;
+
+	/*
+	* Bug in Windows.  When a vertical or horizontal scroll bar is
+	* hidden or shown while the opposite scroll bar is being scrolled
+	* by the user (with WM_HSCROLL code SB_LINEDOWN), the scroll bar
+	* does not redraw properly.  The fix is to detect this case and
+	* redraw the non-client area.
+	*/
+	if (!OS.IsWinCE) {
+		int cmd = wParam & 0xFFF0;
+		switch (cmd) {
+			case OS.SC_HSCROLL:
+			case OS.SC_VSCROLL:
+				boolean showHBar = horizontalBar != null && horizontalBar.getVisible ();
+				boolean showVBar = verticalBar != null && verticalBar.getVisible ();
+				int code = callWindowProc (OS.WM_SYSCOMMAND, wParam, lParam);
+				if ((showHBar != (horizontalBar != null && horizontalBar.getVisible ())) ||
+					(showVBar != (verticalBar != null && verticalBar.getVisible ()))) {
+						int flags = OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_UPDATENOW;
+						OS.RedrawWindow (handle, null, 0, flags);
+					}		
+				if (code == 0) return LRESULT.ZERO;
+				return new LRESULT (code);
+		}
+	}
+	/* Return the result */
+	return result;
+}
+
+}